Validate Slice starts rank in transpose optimizer (#32044)
This pull request improves the robustness of the Slice optimization
logic in the transpose optimizer by adding an additional shape
validation check and a corresponding unit test. The main changes ensure
that Slice operations with a `starts` input longer than the input
tensor's rank are not incorrectly optimized.
**Validation improvements:**
* Updated `HandleSlice` in `onnx_transpose_optimization.cc` to add a
check that the `starts` tensor's length does not exceed the input
tensor's rank, preventing invalid optimizations.
**Testing:**
* Added a new test `TestSliceDefaultAxesStartsLengthExceedsRankNoOpt` in
`transpose_optimizer_test.cc` to verify that Slice nodes with `starts`
longer than the input rank are not optimized, ensuring correct behavior.
